公开(公告)号：US06707547B2

公开(公告)日：2004-03-16

申请号：US09850860

申请日：2001-05-08

Applicant: Gentaro Ishihara

Inventor： Gentaro Ishihara

IPC: G01J300

CPC classification number: H04J14/02 ,  H04B10/07957

Abstract: In a method of analyzing wavelength-division multiplexed signal light, a plurality of reference wavelengths (&lgr;C1-&lgr;Cm) as preliminary specified by the ITU-T standards are stored in a memory; then, maximum points of light intensity are determined from waveform data obtained by measuring an actual wavelength-division multiplexed optical spectrum; any one of the maximum points which at least differs in light intensity from the two minimum points, one being right to said maximum point and the other being left, by at least a channel identifying threshold (TH) level is identified as a channel, and the wavelength of the identified channel is determined as &lgr;Dn; then, the &lgr;Dn for each channel is rounded to the value of the nearest ITU-T grid wavelength &lgr;Cm so as to determine the reference wavelength &lgr;An for each channel and the determined reference wavelengths &lgr;An are stored in the memory.

Abstract translation: 在分析波分复用信号光的方法中，将由ITU-T标准预先规定的多个参考波长（λC1-λCm）存储在存储器中; 然后，通过测量实际波分复用光谱获得的波形数据确定最大光强度点; 至少通过信道识别阈值（TH）级别将光强度与两个最小点（一个正确到所述最大点，另一个剩余）的至少不同的最大点中的任何一个标识为信道，并且 所识别的信道的波长被确定为λDn; 那么，每个通道的lambdaDn被舍入到最接近的ITU-T网格波长λCm的值，以便确定每个通道的参考波长λAn，并将确定的参考波长λAn存储在存储器中。

公开(公告)号：US06552785B2

公开(公告)日：2003-04-22

申请号：US09837085

申请日：2001-04-17

Applicant: Yasuaki Matsubara

Inventor： Yasuaki Matsubara

IPC: G01J300

CPC classification number: G01J3/10

Abstract: A reference wavelength light generating apparatus is disclosed in which light emitted from a light source is branched by a light branching unit, one of the branched lights is extracted as a measuring beam and the other is extracted as reference wavelength light by passing through a collimator and an absorbing member and then being reflected by a reflecting member to return to the branching unit.

Abstract translation: 公开了一种参考波长发光装置，其中从光源发射的光由光分支单元分支，其中一个分支光作为测量光束提取，另一个通过穿过准直器被提取为参考波长光， 吸收构件，然后被反射构件反射回到分支单元。

公开(公告)号：US06535283B1

公开(公告)日：2003-03-18

申请号：US09453490

申请日：1999-12-03

Applicant: Camiel Heffels ,  Thomas Beuermann ,  Matthias Rädle ,  Benno Sens ,  Alfred Rennig ,  Jürgen Ettmüller

Inventor： Camiel Heffels ,  Thomas Beuermann ,  Matthias Rädle ,  Benno Sens ,  Alfred Rennig ,  Jürgen Ettmüller

IPC: G01J300

CPC classification number: G01N21/552 ,  G01N21/8507

Abstract: The disclosure is a probelike apparatus (16) for spectroscopic analysis of a fluid medium (19) by attenuated reflection. Two light beams from a light source (11) impinge upon the boundary (18) between a prism (17) and the medium (19) to be analyzed and the intensities of the light beams reflected at the boundary are measured in a detector unit (22). The two light beams differ in their angle of incidence on the boundary and/or in their polarization state. Measurement is preferably carried out under total reflection.

Abstract translation: 本公开是用于通过衰减反射对流体介质（19）进行光谱分析的概率装置（16）。 来自光源（11）的两束光束照射在棱镜（17）和要分析的介质（19）之间的边界（18）上，并且在检测器单元中测量在边界反射的光束的强度 22）。 两个光束的入射角在边界和/或其偏振状态上不同。 测量优选在全反射下进行。

公开(公告)号：US06819844B2

公开(公告)日：2004-11-16

申请号：US10175986

申请日：2002-06-20

Applicant: Jeffrey H. Hunt

Inventor： Jeffrey H. Hunt

IPC: G01J300

CPC classification number: G01N21/17 ,  G01N2021/1736

Abstract: The system includes a fixed wavelength laser and a tunable wavelength laser as inputs. Respective input optical fibers receive the inputs and transmit them to a first position proximate a location on a surface to be interrogated. Respective fiber coupling optics deliver the inputs to the interrogated location on the surface. The inputs are alignable so that their surface locations of optical illumination overlap on the interrogated location. Output fiber coupling optics receives a reflected output resulting from a three-wave mixing process occurring at the interrogated location. An output optical fiber receives an output of the output fiber coupling optics and transmits the output to a desired position from the interrogated location. An output sensor system receives an output of the output optical fiber and collects, analyzes and interprets the output of the output optical fiber, wherein the fixed wavelength laser, tunable wavelength laser and the output sensor system may be disposed at desired distances and angles from the interrogated location.

Abstract translation: 该系统包括固定波长激光器和可调波长激光器作为输入。 相应的输入光纤接收输入并将它们发送到靠近要询问的表面上的位置的第一位置。 相应的光纤耦合光学器件将输入传递到表面上的询问位置。 输入可对齐，使得其光学照明的表面位置在询问的位置上重叠。 输出光纤耦合光纤接收由询问位置发生的三波混频过程产生的反射输出。 输出光纤接收输出光纤耦合光学器件的输出，并将输出从询问的位置传输到期望的位置。 输出传感器系统接收输出光纤的输出并收集，分析和解释输出光纤的输出，其中固定波长激光器，可调谐波长激光器和输出传感器系统可以以所需的距离和角度从 询问的位置

公开(公告)号：US06809811B2

公开(公告)日：2004-10-26

申请号：US10107853

申请日：2002-03-26

Applicant: Howard A. Johnsen ,  James R. Ross ,  Sal R. Birtola

Inventor： Howard A. Johnsen ,  James R. Ross ,  Sal R. Birtola

IPC: G01J300

CPC classification number: G01J5/041 ,  G01J3/02 ,  G01J3/0243 ,  G01J5/06 ,  G01J5/061 ,  G01N21/15 ,  G01N2021/151

Abstract: A shield is disclosed that is particularly useful for protecting exposed optical elements at the end of optical probes used in the analysis of hazardous emissions in and around an industrial environment from the contaminating effects of those emissions. The instant invention provides a hood or cowl in the shape of a right circular cylinder that can be fitted over the end of such optical probes. The hood provides a clear aperture through which the probe can perform unobstructed analysis. The probe optical elements are protected from the external environment by passing a dry gas through the interior of the hood and out through the hood aperture in sufficient quantity and velocity to prevent any significant mixing between the internal and external environments. Additionally, the hood is provided with a cooling jacket to lessen the potential for damaging the probe due to temperature excursions.

Abstract translation: 公开了一种屏蔽，其特别适用于在用于分析工业环境中及其周围的有害排放物的光学探针的末端，以防止这些排放物的污染影响，来保护暴露的光学元件。 本发明提供了可以安装在这种光学探头的端部上的右圆柱形的罩或罩。 护罩提供了一个清晰的孔，探针可以通过该孔进行无阻碍的分析。 探头光学元件通过使干燥气体通过发动机罩的内部并以足够的数量和速度通过发动机罩的开口而被从外部环境保护，以防止内部和外部环境之间的任何明显的混合。 此外，罩设有冷却套，以减少由于温度偏移而导致探针损坏的可能性。

公开(公告)号：US06698330B1

公开(公告)日：2004-03-02

申请号：US07068501

申请日：1987-07-01

Applicant: Arvel Benjamin Witte ,  Arthur Karl Williams ,  Richard David Fleeter

Inventor： Arvel Benjamin Witte ,  Arthur Karl Williams ,  Richard David Fleeter

IPC: G01J300

CPC classification number: B64D33/04 ,  F41H13/00 ,  G01N21/72 ,  G01S17/74

Abstract: The present invention resides in an infrared identification system for identifying military vehicles as friendly or hostile. The infrared identification system includes a seed introduction system, in each friendly vehicle, that introduces trace quantities of a particular seed formulation into the vehicle's exhaust. An infrared detection system, also in each friendly vehicle, detects the spectrally-discrete thermal emissions of the seed formulation to identify those vehicles having the thermal emissions as friendly. The infrared identification system provides rapid and positive friend or foe identification of land, sea and air vehicles at long ranges without being jammed, intercepted or mimicked.

公开(公告)号：US06483580B1

公开(公告)日：2002-11-19

申请号：US09036557

申请日：1998-03-06

Applicant: Yiping Xu ,  Ibrahim Abdulhalim

Inventor： Yiping Xu ,  Ibrahim Abdulhalim

IPC: G01J300

CPC classification number: G03F7/70625 ,  G01B11/0641 ,  G01N21/211 ,  G01N21/4788 ,  G01N21/55 ,  G01N21/9501 ,  G01N21/956 ,  G01N21/95607 ,  G01N2021/213 ,  G01N2021/556 ,  G01N2021/95615 ,  G03F7/70491 ,  G03F7/70616 ,  H01L22/12 ,  H01L2924/0002 ,  H01L2924/00

Abstract: Before the diffraction from a diffracting structure on a semiconductor wafer is measured, where necessary, the film thickness and index of refraction of the films underneath the structure are first measured using spectroscopic reflectometry or spectroscopic ellipsometry. A rigorous model is then used to calculate intensity or ellipsometric signatures of the diffracting structure. The diffracting structure is then measured using a spectroscopic scatterometer using polarized and broadband radiation to obtain an intensity or ellipsometric signature of the diffracting structure. Such signature is then matched with the signatures in the database to determine the grating shape parameters of the structure.

Abstract translation: 在半导体晶片上的衍射结构的衍射测量之前，必要时，首先使用光谱反射计或光谱椭偏仪测量膜下面的膜的膜厚度和折射率。 然后使用严格的模型来计算衍射结构的强度或椭偏特征。 然后使用使用偏振和宽带辐射的分光散射仪测量衍射结构，以获得衍射结构的强度或椭偏特征。 然后将这样的签名与数据库中的签名相匹配，以确定结构的光栅形状参数。

公开(公告)号：US06760103B2

公开(公告)日：2004-07-06

申请号：US10382455

申请日：2003-03-06

Applicant: Tarja Shakespeare ,  Petri Soininen ,  Jouni Vuorela

Inventor： Tarja Shakespeare ,  Petri Soininen ,  Jouni Vuorela

IPC: G01J300

CPC classification number: G01N21/89 ,  G01N21/33 ,  G01N21/35 ,  G01N21/3563 ,  G01N21/55 ,  G01N21/59

Abstract: The invention relates to a method and arrangement for measuring optical properties from paper or board that constitutes a target to be measured and comprises two planar surfaces. In the arrangement, one surface of the target to be measured is illuminated by an optical power source, and the illuminated area on the opposite side of the illuminated surface comprises at least one backing with known optical properties. A detector detects the illuminated surface in the area of the backing, and at least one optical property of the target to be measured is determined by means of spectral information obtained at the backing.

Abstract translation: 本发明涉及一种用于测量构成要测量的目标的纸或板的光学特性并包括两个平面的方法和装置。 在该布置中，待测量的目标物的一个表面被光学电源照射，并且被照射表面的相对侧上的照明区域包括至少一个具有已知光学特性的背衬。 检测器检测背衬区域中的照射表面，并且通过在背衬处获得的光谱信息来确定要测量的目标物的至少一个光学特性。

公开(公告)号：US06636297B2

公开(公告)日：2003-10-21

申请号：US09842230

申请日：2001-04-26

Applicant: Osamu Wakabayashi ,  Tatsuo Enami ,  Shinji Nagai

Inventor： Osamu Wakabayashi ,  Tatsuo Enami ,  Shinji Nagai

IPC: G01J300

CPC classification number: G01J9/00 ,  G01J1/4257

Abstract: A vacuum ultraviolet laser wavelength measuring apparatus capable of accurately measuring wavelength characteristics of a laser beam. The wavelength measuring apparatus has spectral devices for generating an optical pattern corresponding to wavelength characteristics of an incident laser beam and measuring wavelength characteristics of a laser beam in a vacuum ultraviolet region oscillating from a vacuum ultraviolet laser on the basis of the optical pattern. The apparatus has a fluorescent screen for generating a fluorescent pattern having an intensity distribution corresponding to an intensity distribution of the incident optical pattern, a pattern detector for measuring the intensity distribution of the fluorescent pattern, and arithmetic unit for calculating the wavelength characteristics of the laser beam on the basis of the measured intensity distribution.

Abstract translation: 一种能够精确地测量激光束的波长特性的真空紫外激光波长测量装置。 波长测量装置具有用于产生与入射激光束的波长特性相对应的光学图案的光谱装置，并且基于光学图案测量从真空紫外激光器振荡的真空紫外区域中的激光束的波长特性。 该装置具有用于产生具有对应于入射光学图案的强度分布的强度分布的荧光图案的荧光屏，用于测量荧光图案的强度分布的图案检测器和用于计算激光器的波长特性的算术单元 基于测量的强度分布。

公开(公告)号：US06545473B1

公开(公告)日：2003-04-08

申请号：US09550113

申请日：2000-04-14

Applicant: Matthias Gebhardt ,  Heinz Hentzelt ,  Eva Eberlein

Inventor： Matthias Gebhardt ,  Heinz Hentzelt ,  Eva Eberlein

IPC: G01J300

CPC classification number: G01R33/385 ,  G01R33/3856

Abstract: A switchable gradient coil system is composed of saddle coils that can be operated respectively as primary coils or auxiliary coils. The auxiliary coils for one gradient axis, which exhibit a reduced subtended angle compared to the primary coils, are arranged in the gaps between coils that are arranged diametrically opposite each other in a radial plane for the other gradient axis.

Abstract translation: 可切换梯度线圈系统由可以分别作为初级线圈或辅助线圈操作的鞍形线圈组成。 用于一个梯度轴的辅助线圈，其与初级线圈相比呈现减小的对角，被布置在线圈之间的间隙中，线圈之间的间隙在另一个梯度轴的径向平面中彼此径向相对。